NASA apparently now supports littering. An astronaut threw two large chunks of junk off the space station and into orbit. He yelled “Jettison!” while doing so.

A spacewalking astronaut did some massive housecleaning at the international space station Monday, tossing out a camera mounting and an ammonia tank weighing more than half a ton. The outdated equipment was no longer needed and joined more than 9,000 pieces of orbital debris already being tracked from Earth.

“I’ll be sending my bill in the mail for trash disposal,” Clayton Anderson joked to Mission Control.